Abdalla M A, Abdalla O
J Anat. 1979 Aug;129(Pt 1):45-50.
Morphometric analysis of the kidney of the camel was carried out on gross slices and histological sections using standard morphometric methods. The renal cortex occupied about 50% by volume of the kidney, and the ratio of the thickness of the medulla to that of the cortex was about 4:1. The relative thickness of the medulla was about 7.89. This parameter is an indicator of the lengths of the loops of Henle and vasa recta, and, according to the countercurrent theory, is consequently an indicator of the ability of the kidney to concentrate urine. In each kidney the volume and surface area of the cortical tubules and the number of glomeruli were determined and compared with these parameters in some other mammals. In addition the architectures of the renal pelvis and medulla and their significance in relation to the excretion of hypertonic urine were discussed. It was concluded that the kidney of the camel possesses the anatomical requisites for the production of hypertonic urine.
采用标准形态测量方法，对骆驼肾脏的大体切片和组织学切片进行了形态测量分析。肾皮质约占肾脏体积的50%，髓质与皮质厚度之比约为4:1。髓质的相对厚度约为7.89。该参数是亨利氏袢和直小血管长度的指标，因此根据逆流理论，也是肾脏浓缩尿液能力的指标。测定了每个肾脏皮质小管的体积和表面积以及肾小球数量，并与其他一些哺乳动物的这些参数进行了比较。此外，还讨论了肾盂和髓质的结构及其与高渗尿液排泄的关系。得出的结论是，骆驼的肾脏具备产生高渗尿液的解剖学条件。
